Stanton didn't get pulled out because he wasn't getting hit in the head....he was slow to get up because he was getting pummeled in general. He had whole body aches, not a concussion.
Wilson sure didn't look concussed to me when he got up and jogged to the sidelines - he never had that 'go limp' moment that really makes you worry. That being said the ref absolutely did the right thing - if he suspects a concussion he needs yank the player for testing.
From what I could see on TV, Russell evaluated himself and put himself back in the game - absolutely he broke the rules. As far as punishment, the NFL should be taking into account that the team (whether it was the doctors or coaches) realized the error and had him checked out as soon as he came off the field two plays later. That shows there was no intent on the part of the team to ignore the protocols.